
.flex {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
}

.flex-row {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;

  -webkit-box-orient: horizontal;
  -webkit-flex-direction: row;
  flex-direction: row;
}

.flex-col{
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;

  -webkit-box-orient: vertical;
  -webkit-flex-direction: column;
  flex-direction: column;
}

.flex-grow-0{
  min-width: 0;
  -webkit-box-flex: 0;
  -webkit-flex-grow: 0;
  -ms-flex-positive: 0;
  flex-grow: 0;
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}
.flex-grow-1{
  min-width: 0;
  -webkit-box-flex: 1;
  -webkit-flex-grow: 1;
  -ms-flex-positive: 1;
  flex-grow: 1;
  -webkit-flex-shrink: 1;
  -ms-flex-negative: 1;
  flex-shrink: 1;
}

.flex-x-center{
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;

  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
}
.flex-y-center{
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;

  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  -ms-grid-row-align: center;
  align-items: center;
}
.flex-y-bottom{
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;

  -webkit-box-align: end;
  -webkit-align-items: flex-end;
  -ms-flex-align: end;
  -ms-grid-row-align: flex-end;
  align-items: flex-end;
}

.flex-right{
  display: flex;
  justify-content: flex-end;
}
.flex-left{
  display: flex;
  justify-content: flex-start;
}
/*左右分布*/
.flex-list{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.flex-wrap{
  display: flex;
  flex-wrap: wrap;
}

.margin-auto{
  margin:0 auto;
}
.header{
  max-width: 1200px;
}
.text-center{
  text-align: center;
}

